Symbol sets

GDDM V3R2 Base Application Programming Guide

Symbol sets

GDDM V3R2 Base Application Programming Guide
SC33-0867-01

The functions described in "Using symbol sets" in topic 12.0 apply to plotters as well as terminals. The symbols are drawn using the calls described in "Creating graphics-text output in your application" in topic 4.0.

Both image and vector symbols are supported on plotters. The image symbols are drawn using the notional pixels described in "Cells, pixels, and plotter units" in topic 21.1.4. The size therefore depends on the specified or defaulted pen size.

Plotting pixels is relatively slow, and it quickly wears the pens. To alleviate these problems, GDDM plots all sets of contiguous pixels in the x direction as lines. Nevertheless, extensive use of image symbols is not advised on plotters.

The GDDM default symbol set for all modes of graphics text is the vector set ADMDVSS. To use an image set for mode-1 or -2, you must load it using a GSLSS call.

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